High-Speed Serial Interface (Hssi) (Optional); Hssi (J6) - Radyne DMD2050 Operation Manual

DMD2050 Universal Satellite Modem

5.5 High-Speed Serial Interface (HSSI) (Optional)

5.5.1 HSSI (J6)

The HSSI (High-Speed Serial Interface) (J6) complies with the HSSI Functional and Electrical
Specifications. The physical interface is a 50-Pin SCSI-2 Type Connector. Electrical levels are
ECL. The pinouts for this interface are listed in Table 5-11.
Table 5-11. J9 – HSSI (High-Speed Serial Interface) 50-Pin Connector
Pin No. (+) Pin No. (–)
1
2
3
4
6
7
8
9
11
13
14 - 18 39 – 43
19
20 - 23 45 - 48
24
25
50
TM110 – Rev. 1.3
Signal Name
26 SG
27 RT
28 CA
29 RD
31 ST
32 SG
33 TA
34 TT
36 SD
38 SG
5 Ancillary to
DCE
44 SG
4 Ancillary
from DCE
49 TM
N/A MOD_FLT
N/A DMD_FLT
Description
Signal Ground
Receive Timing
DCE Available
Receive Data
Send Timing (SCT)
Signal Ground
DTE Available
Terminal Timing (SCTE)
Send Data
Signal Ground
Reserved
Signal Ground
Reserved
Test Mode
Alarm
Alarm
Rear Panel Interfaces
Direction
---
Output
Output
Output
Output
---
Input
Input
Input
---
Input
---
Output
Output
Output
Output
5-13